package com.hytc.filter;

import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;

public class AdminFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {

        servletRequest.setCharacterEncoding("UTF-8");
//        servletResponse.setContentType("text/html";"charset=utf-8");
//        filterChain.doFilter(servletRequest,servletResponse);
        HttpServletRequest httpServletRequest =(HttpServletRequest) servletRequest;
        Object user = httpServletRequest.getSession().getAttribute("user");
        if (user == null){
            httpServletRequest.getRequestDispatcher("/login.jsp").forward(servletRequest, servletResponse);
            return;

        } else {
            filterChain.doFilter(servletRequest, servletResponse);

        }
    }

    @Override
    public void destroy() {

    }
}
